构造通信原理虚拟实验室.doc

构造通信原理虚拟实验室 目 录 摘要……………………………………………………..…2 英文摘要（Abstract）……………………………….……2 第一章 引言…………………………….………….……..3 第二章 理论与方法……………….……………..…...…..4 2.1 Matlab简介…………………………….......……4 2.2 Simulink简介………………………………..…..6 第三章 设计方案…………….……………………..….…7 实验一：模拟线性调制…………………………………….…………..7 实验二：扰码与解扰……………………………………………..……13 实验三：低通信号的抽样定理…………………………….………….16 第四章 小结……………………………………………...18 致谢………………………………………………………18 参考文献…………………………………………………18 摘要:本毕业设计用Matlab中的建模仿真工具Simulink对通信原理实验进行仿真。作为系列实验的第一部分，包括模拟信号的线性调制解调(AM、DSB、SSB)过程、扰码与解扰实验和低通信号的抽样定理实验。论文中讲述了Matlab的基础知识、Simulink仿真操作方法以及在通信系统中的应用，对被仿真实验的基本原理也进行了简要介绍。 通过本设计对构造通信原理虚拟实验室这一课题进行了初步的探索。 关键词：MatLab; Simulink; 通信仿真 Abstract：The title of my my graduate design is “Simulate Communication Experiments by Simulink”. Simulink is a simulation tool integrated in Matlab.?Matlab is the most popular, influential and active language in the academic world, especially in the communities of automatic control, nowadays.? It originated from matrix computation, and now becomes a highly integrated language.?Simulink is an interactive tool for modeling, simulating, and analyzing dynamic systems. Commonly used in control system design, DSP design, communication system design, and other simulation applications, Simulink enables you to build graphical block diagrams, simulate dynamic systems, evaluate system performance, and refine your designs.??? I successfully simulate some experiments of communication principal,including: Modulation of analogue linear signals:AM、DSB、SSB Code and decode of digital signals Sample principal of lowband signals Besides what is mentioned above,this paper gives us some introductions of how to use Matlab and Simulink as a freshman,through these introductions you can get some basic knowledge of Matlab. Communication principle is very abstract ,the simulated experiments are also hard to understand,so in order to make the simulated experiments understood easily,this paper offers detailed description about some correlat